Health & Medicine
- Health & Medicine
4 takeaways from the WHO’s report on the origins of the coronavirus
The leading hypothesis is that the coronavirus spread to people from bats via a yet-to-be-identified animal, but no animals have tested positive so far.
- Health & Medicine
Pfizer says its COVID-19 vaccine has 100 percent efficacy in young people
Vaccinated 12- to 15-year-olds developed higher levels of coronavirus antibodies compared with vaccinated 16- to 25-year-olds from a previous trial.
- Health & Medicine
Frog skin cells turned themselves into living machines
The “xenobots” can swim, navigate tubes, move particles into piles and even heal themselves after injury, a new study reports.
- Health & Medicine
Moderna and Pfizer COVID-19 vaccines may block infection as well as disease
The mRNA vaccines are about 90 percent effective at blocking coronavirus infection, which could lead to reduced transmission, real-world data suggest.
- Health & Medicine
AstraZeneca’s COVID-19 vaccine holds up in an updated analysis of trial data
The redo dropped the overall efficacy of AstraZeneca’s vaccine from 79 percent to 76 percent. But a slight fluctuation is not unexpected, experts say.
- Animals
Dim lighting may raise the risk of a West Nile virus exposure
Dimly lit nights increased risk of West Nile virus exposure in chickens. Artificial light proved a better predictor of risk than population or paving.
- Health & Medicine
Here’s what makes 4 promising COVID-19 vaccines unique — and potentially useful
More vaccines still in the works are exploring a variety of approaches, including pills and electrical zaps.
- Health & Medicine
AstraZeneca says its COVID-19 vaccine is 79 percent effective in a U.S. trial
The shot was 80 percent effective at preventing illness in people 65 and older and prevented severe disease and hospitalization.
- Health & Medicine
New drugs that block a brain chemical are game changers for some migraine sufferers
Drugs that block a brain chemical called CGRP are helping some patients who suffer from migraine pain.
- Health & Medicine
AstraZeneca’s COVID-19 vaccine isn’t tied to blood clots, experts say
Multiple countries suspended use of AstraZeneca’s COVID-19 vaccine because of concerns about blood clots, but health authorities say the shot is safe.
- Health & Medicine
We still don’t know for sure where the coronavirus came from. Here’s why
A year into the pandemic, we know the virus probably came from bats, but how and why it leaped to humans are still unknown.
- Health & Medicine
Coronavirus reinfections appear rare, especially in people younger than 65
Previous infections provide 80 percent protection in younger people and 47 percent in those over 65. Vaccines might help boost immunity further.
